File:Rubidium fountain.jpg
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Rubidium_fountain.jpg (250 × 282 pixels, file size: 20 KB, MIME type: image/jpeg)
Summary
English: Rubidium (Rb) fountain atomic clock at the U.S. Naval Observatory
Copyright status:
This file is a work of a sailor or employee of the U.S. Navy, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain.
Source:
http://commons.wikimedia.org/wiki/File:USNO_rubidium_fountain.jpg
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 17:08, 20 October 2014 | | 250 × 282 (20 KB) | Gksckdlfem (talk | contribs) | English: Rubidium (Rb) fountain atomic clock at the U.S. Naval Observatory |
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